Mindat Logo

Raslakite

This page is currently not sponsored. Click here to sponsor this page.



Formula:
Na
 
15
Ca
 
3
Fe
2+
3
(Na,Zr)
 
3
Zr
 
3
Nb
 
<0.5
[(Cl,OH)|(Si
 
3
O
 
9
)
 
2
|(Si
 
9
O
 
27
)
 
2
SiO] · 3(OH,H
 
2
O)
System:TrigonalColour:brownish red
Hardness:5
Member of:Eudialyte Group
Name:For the Raslak valley, located southwest of the type locality, Mt Karnasurt


Eudialyte Group

Classification of Raslakite

IMA status:Approved 2002
Strunz 8th edition ID:8/E.25-16
Nickel-Strunz 10th (pending) edition ID:9.CO.10

9 : SILICATES (Germanates)
C : Cyclosilicates
O : [Si9O27]18- 9-membered rings
Dana 8th edition ID:64.1.3.2

64 : CYCLOSILICATES Rings with Other Anions and Insular Silicate Groups
1 : Rings with Other Anions and Insular Silicate Groups with mixed ring types
mindat.org URL:http://www.mindat.org/min-25687.html
Please feel free to link to this page.

Type Occurrence of Raslakite

Type Locality:Karnasurt Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia
General Appearance of Type Material:grains to 3 cm across
Geological Setting of type material:alkaline pegmatite
Associated Minerals at type locality:
TerskiteNephelineMicroclineLamprophylliteKazakovite
FluorcaphiteAegirine

Physical Properties of Raslakite

Lustre:Vitreous
Diaphaneity (Transparency):Transparent
Colour:brownish red
Streak:white
Hardness (Mohs):5
Tenacity:Brittle
Cleavage:None Observed
Fracture:Conchoidal
Density (measured):2.95 g/cm3

Crystallography of Raslakite

Crystal System:Trigonal
Class (H-M):3 - Pyramidal
Cell Parameters:a = 14.23Å, c = 30.02Å
Ratio:a:c = 1 : 2.11
Unit Cell Volume:V 5,264.43 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction:
d-spacingIntensity
4.31 (65)
3.21 (60)
2.97 (85)
2.85 (100)

Chemical Properties of Raslakite

Formula:
Na
 
15
Ca
 
3
Fe
2+
3
(Na,Zr)
 
3
Zr
 
3
Nb
 
<0.5
[(Cl,OH)|(Si
 
3
O
 
9
)
 
2
|(Si
 
9
O
 
27
)
 
2
SiO] · 3(OH,H
 
2
O)
Simplified for copy/paste:Na15Ca3Fe2+3(Na,Zr)3Zr3Nb<0.5[(Cl,OH)|(Si3O9)2|(Si9O27)2SiO]·3(OH,H2O)
All elements listed in formula:Ca, Cl, Fe, H, Na, Nb, O, Si, Zr

Relationship of Raslakite to other Species

Member of:Eudialyte Group
Other Members of Group:

- +
Alluaivite
Na
 
19
(Ca,Mn)
 
6
(Ti,Nb)
 
3
Si
 
26
O
 
74
Cl · 2H
 
2
O
Andrianovite
Na
 
12
(K,Sr,Ce)
 
3
Ca
 
6
Mn
 
3
Zr
 
3
Nb(Si
 
25
O
 
73
)(O,H
 
2
O,OH)
 
5
Aqualite
(H
 
3
O)
 
8
(Na,K,Sr)
 
5
Ca
 
6
Zr
 
3
Si
 
26
O
 
66
(OH)
 
9
Cl
Carbokentbrooksite
Na
 
11-12
(Na,Ce)
 
3
Ca
 
6
Mn
 
3
Zr
 
3
Nb[(OH)
 
3
|CO
 
3
|(Si
 
3
O
 
9
)
 
2
|(Si
 
9
O
 
27
)
 
2
SiO] · H
 
2
O
Davinciite
Na
 
12
K
 
3
Ca
 
6
Fe
2+
3
Zr
 
3
(Si
 
26
O
 
73
OH)Cl
 
2
Dualite
Na
 
30
(Ca,Na,Ce,Sr)
 
12
(Na,Mn,Fe,Ti)
 
6
Zr
 
3
Ti
 
3
Mn[Si
 
51
O
 
144
](OH,H
 
2
O,Cl)
 
9
Eudialyte
Na
 
15
Ca
 
6
(Fe
2+
 
,Mn
2+
 
)
 
3
Zr
 
3
[Si
 
25
O
 
73
](O,OH,H
 
2
O)
 
3
(OH,Cl)
 
2
Feklichevite
Na
 
11
Ca
 
9
(Fe
3+
 
,Fe
2+
 
)
 
2
Zr
 
3
Nb[Si
 
25
O
 
73
](OH,H
 
2
O,Cl,O)
 
5
Fengchengite
Na
 
12
 
3
(Ca,Sr)
 
6
Fe
3+
3
Zr
 
3
Si(Si
 
25
O
 
73
)(H
 
2
O,OH)
 
3
(OH,Cl)
 
2
Ferrokentbrooksite
Na
 
15
Ca
 
6
(Fe,Mn)
 
3
Zr
 
3
NbSi
 
25
O
 
73
(O,OH,H
 
2
O)
 
3
Cl
 
2
Georgbarsanovite
Na
 
12
(Mn,Sr,REE)
 
3
Ca
 
6
Fe
2+
3
Zr
 
3
NbSi
 
25
O
 
76
Cl
 
2
·H
 
2
O
Golyshevite
Na
 
10
Ca
 
3
Ca
 
6
Zr
 
3
Fe
 
2
SiNb(Si
 
3
O
 
9
)
 
2
(Si
 
9
O
 
27
)
 
2
CO
 
3
(OH)
 
3
· H
 
2
O
Ikranite
(Na,H
 
3
O)
 
15
(Ca,Mn
2+
 
)
 
6
Fe
3+
2
Zr
 
3-4
[Cl|(H
 
0-3
Si
 
3
O
 
9
)
 
2
|{(Si
 
9
O
 
27
)
 
2
,(Si
 
9
O
 
27
)
 
2
SiO}] · 2-3H
 
2
O
Johnsenite-(Ce)
Na
 
12
(Ce,La,Sr,Ca)
 
3
Ca
 
6
Mn
 
3
Zr
 
3
W[(OH,Cl)
 
2
|CO
 
3
|(Si
 
3
O
 
9
)
 
2
|(Si
 
9
O
 
27
)
 
2
SiO] · H
 
2
O
Kentbrooksite
(Na,REE)
 
15
(Ca,REE)
 
6
(Mn
2+
 
,Fe
2+
 
)
 
3
Zr
 
3
Nb[Si
 
25
O
 
74
]F
 
2
· 2H
 
2
O
Khomyakovite
Na
 
12
Sr
 
3
Ca
 
6
Fe
 
3
Zr
 
3
W[Si
 
25
O
 
73
](O,OH,H
 
2
O)
 
3
(OH,Cl)
 
2
Labyrinthite
(Na,K,Sr)
 
35
Ca
 
12
Fe
 
3
Zr
 
6
TiSi
 
51
O
 
144
(O,OH,H
 
2
O)
 
9
Cl
 
3
Manganoeudialyte
Na
 
14
Ca
 
6
Mn
 
3
Zr
 
3
[Si
 
26
O
 
72
(OH)
 
2
](H
 
2
O,Cl,O,OH)
 
6
Manganokhomyakovite
Na
 
12
Sr
 
3
Ca
 
6
Mn
 
3
Zr
 
3
W[Si
 
25
O
 
73
](O,OH,H
 
2
O)
 
3
(OH,Cl)
 
2
Mogovidite
Na
 
9
(Ca,Na)
 
5
Ca
 
6
Zr
 
3
Fe
 
2
(Si,Nb)(Si
 
9
O
 
27
)
 
2
(Si
 
3
O
 
9
)
 
2
(CO
 
3
)(OH,H
 
2
O)
 
3
Cl
 
0.3
Oneillite
Na
 
15
Ca
 
3
Mn
 
3
Fe
2+
3
Zr
 
3
Nb(Si
 
25
O
 
73
)(O,OH,H
 
2
O)
 
3
(OH,Cl)
 
2
Rastsvetaevite
Na
 
27
K
 
8
Ca
 
12
Fe
 
3
Zr
 
6
Si
 
52
O
 
144
(O,OH,H
 
2
O)
 
6
Cl
 
2
Taseqite
Na
 
12
Sr
 
3
Ca
 
6
Fe
 
3
Zr
 
3
Nb[Cl
 
2
|(Si
 
3
O
 
9
)
 
2
|(Si
 
9
O
 
27
)
 
2
SiO] · 3(O,OH,H
 
2
O)
UM1998-21-SiO:CaCeClHMnNaZr
Na
 
16
Ca
 
6
(Mn,Ce)
 
3
Zr
 
3
(Si
 
3
O
 
9
)
 
2
(Si
 
9
O
 
27
)
 
2
(OH,Cl)
 
4
Voronkovite
Na
 
15
(Na,Ca,Ce)
 
3
(Mn,Ca)
 
3
Fe
 
3
Zr
 
3
Si
 
26
O
 
72
(OH,O)
 
4
Cl · H
 
2
O
Zirsilite-(Ce)
Na
 
11-12
(Ce,Na)
 
3
Ca
 
6
Mn
 
3
Zr
 
3
Nb(Si
 
19
O
 
55
)(Si
 
3
O
 
9
)
 
2
(CO
 
3
)(OH)
 
3
· H
 
2
O
Related Minerals - Nickel-Strunz Grouping):

- +
9.CO.10Alluaivite
Na
 
19
(Ca,Mn)
 
6
(Ti,Nb)
 
3
Si
 
26
O
 
74
Cl · 2H
 
2
O
9.CO.10Eudialyte
Na
 
15
Ca
 
6
(Fe
2+
 
,Mn
2+
 
)
 
3
Zr
 
3
[Si
 
25
O
 
73
](O,OH,H
 
2
O)
 
3
(OH,Cl)
 
2
9.CO.10Ferrokentbrooksite
Na
 
15
Ca
 
6
(Fe,Mn)
 
3
Zr
 
3
NbSi
 
25
O
 
73
(O,OH,H
 
2
O)
 
3
Cl
 
2
9.CO.10Kentbrooksite
(Na,REE)
 
15
(Ca,REE)
 
6
(Mn
2+
 
,Fe
2+
 
)
 
3
Zr
 
3
Nb[Si
 
25
O
 
74
]F
 
2
· 2H
 
2
O
9.CO.10Khomyakovite
Na
 
12
Sr
 
3
Ca
 
6
Fe
 
3
Zr
 
3
W[Si
 
25
O
 
73
](O,OH,H
 
2
O)
 
3
(OH,Cl)
 
2
9.CO.10Manganokhomyakovite
Na
 
12
Sr
 
3
Ca
 
6
Mn
 
3
Zr
 
3
W[Si
 
25
O
 
73
](O,OH,H
 
2
O)
 
3
(OH,Cl)
 
2
9.CO.10Oneillite
Na
 
15
Ca
 
3
Mn
 
3
Fe
2+
3
Zr
 
3
Nb(Si
 
25
O
 
73
)(O,OH,H
 
2
O)
 
3
(OH,Cl)
 
2
9.CO.10Feklichevite
Na
 
11
Ca
 
9
(Fe
3+
 
,Fe
2+
 
)
 
2
Zr
 
3
Nb[Si
 
25
O
 
73
](OH,H
 
2
O,Cl,O)
 
5
9.CO.10Carbokentbrooksite
Na
 
11-12
(Na,Ce)
 
3
Ca
 
6
Mn
 
3
Zr
 
3
Nb[(OH)
 
3
|CO
 
3
|(Si
 
3
O
 
9
)
 
2
|(Si
 
9
O
 
27
)
 
2
SiO] · H
 
2
O
9.CO.10Zirsilite-(Ce)
Na
 
11-12
(Ce,Na)
 
3
Ca
 
6
Mn
 
3
Zr
 
3
Nb(Si
 
19
O
 
55
)(Si
 
3
O
 
9
)
 
2
(CO
 
3
)(OH)
 
3
· H
 
2
O
9.CO.10Ikranite
(Na,H
 
3
O)
 
15
(Ca,Mn
2+
 
)
 
6
Fe
3+
2
Zr
 
3-4
[Cl|(H
 
0-3
Si
 
3
O
 
9
)
 
2
|{(Si
 
9
O
 
27
)
 
2
,(Si
 
9
O
 
27
)
 
2
SiO}] · 2-3H
 
2
O
9.CO.10Taseqite
Na
 
12
Sr
 
3
Ca
 
6
Fe
 
3
Zr
 
3
Nb[Cl
 
2
|(Si
 
3
O
 
9
)
 
2
|(Si
 
9
O
 
27
)
 
2
SiO] · 3(O,OH,H
 
2
O)
9.CO.10Rastsvetaevite
Na
 
27
K
 
8
Ca
 
12
Fe
 
3
Zr
 
6
Si
 
52
O
 
144
(O,OH,H
 
2
O)
 
6
Cl
 
2
9.CO.10Golyshevite
Na
 
10
Ca
 
3
Ca
 
6
Zr
 
3
Fe
 
2
SiNb(Si
 
3
O
 
9
)
 
2
(Si
 
9
O
 
27
)
 
2
CO
 
3
(OH)
 
3
· H
 
2
O
9.CO.10Labyrinthite
(Na,K,Sr)
 
35
Ca
 
12
Fe
 
3
Zr
 
6
TiSi
 
51
O
 
144
(O,OH,H
 
2
O)
 
9
Cl
 
3
9.CO.10Johnsenite-(Ce)
Na
 
12
(Ce,La,Sr,Ca)
 
3
Ca
 
6
Mn
 
3
Zr
 
3
W[(OH,Cl)
 
2
|CO
 
3
|(Si
 
3
O
 
9
)
 
2
|(Si
 
9
O
 
27
)
 
2
SiO] · H
 
2
O
9.CO.10Mogovidite
Na
 
9
(Ca,Na)
 
5
Ca
 
6
Zr
 
3
Fe
 
2
(Si,Nb)(Si
 
9
O
 
27
)
 
2
(Si
 
3
O
 
9
)
 
2
(CO
 
3
)(OH,H
 
2
O)
 
3
Cl
 
0.3
9.CO.10Georgbarsanovite
Na
 
12
(Mn,Sr,REE)
 
3
Ca
 
6
Fe
2+
3
Zr
 
3
NbSi
 
25
O
 
76
Cl
 
2
·H
 
2
O
9.CO.10Aqualite
(H
 
3
O)
 
8
(Na,K,Sr)
 
5
Ca
 
6
Zr
 
3
Si
 
26
O
 
66
(OH)
 
9
Cl
9.CO.10Dualite
Na
 
30
(Ca,Na,Ce,Sr)
 
12
(Na,Mn,Fe,Ti)
 
6
Zr
 
3
Ti
 
3
Mn[Si
 
51
O
 
144
](OH,H
 
2
O,Cl)
 
9
9.CO.10Andrianovite
Na
 
12
(K,Sr,Ce)
 
3
Ca
 
6
Mn
 
3
Zr
 
3
Nb(Si
 
25
O
 
73
)(O,H
 
2
O,OH)
 
5
9.CO.10Voronkovite
Na
 
15
(Na,Ca,Ce)
 
3
(Mn,Ca)
 
3
Fe
 
3
Zr
 
3
Si
 
26
O
 
72
(OH,O)
 
4
Cl · H
 
2
O
9.CO.10UM1999-36-SiO:CaCeHMnNaNbSrZr
Na
 
17
(Ca,Ce,Sr)
 
2
Mn
 
3
(Zr,Nb)
 
4
Si
 
25
O
 
73
(O,OH,F,Cl)
 
5
9.CO.10UM2000-66-SiO:CaClFeHMnNaNbSrZr
Na
 
12
(Ca,Mn)
 
6
(Sr,Na,K)
 
3
(Fe,Mn)
 
3
(Zr,Nb)
 
4
Si
 
25
O
 
66
(OH,Cl)
 
11
9.CO.10Manganoeudialyte
Na
 
14
Ca
 
6
Mn
 
3
Zr
 
3
[Si
 
26
O
 
72
(OH)
 
2
](H
 
2
O,Cl,O,OH)
 
6
9.CO.10UM1990-78-SiO:CaClFeHKNaZr
(H
 
3
O)
 
7
(Na,K)
 
5
(Ca,Sr,Mn)
 
6
Zr
 
3
[Si
 
3
O
 
7
(O,OH)
 
2
]
 
2
[Si
 
9
O
 
23
(O,OH)
 
4
]2[SiNaFe(Zr,Ti,Al,Nb)□]Cl
 
1.5
(O,OH)
9.CO.10UM-1990-79-SiO:CaClFeHMnNaNbREEZr
Na
 
14
Ca
 
5
(Mg,Ca,Mn)Zr
 
3
(Si
 
3
O
 
9
)
 
2
(Si
 
9
O
 
27
)
 
2
(Si,Nb,Al,Zr)
 
2
(Fe,Zr)
 
3
(Mn,Na,Ce,La,Y)(Na,H
 
2
O,K,Sr)(OH)
 
4-5
(OH,Cl)
9.CO.10UM1971-22-SiO:CaClFeHMgMnNaNbZr
Na
 
12
Ca
 
5
(Ce,La,Y,Ca)Zr
 
3
(Zr,Nb)(Fe,Mn)
 
3
[Si
 
9
O
 
24-26
(OH)
 
1-3
]
 
2
[Si
 
3
O
 
9
]
 
2
Cl
9.CO.10UM1998-21-SiO:CaCeClHMnNaZr
Na
 
16
Ca
 
6
(Mn,Ce)
 
3
Zr
 
3
(Si
 
3
O
 
9
)
 
2
(Si
 
9
O
 
27
)
 
2
(OH,Cl)
 
4

Other Names for Raslakite

Synonyms:
IMA2002-067
Other Languages:
Simplified Chinese:富钠异性石
Traditional Chinese:富鈉異性石

Other Information

Fluorescence in UV light:none
Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Raslakite

Reference List:

- +
Chukanov, N.V., Pekov, I.V., Zadov, A.E., Korovushkin, V.V., Ekimenkova, I.A., Rastsvetaeva, R.K., Khasanov, V.V. (2003): Ikranite and raslakite - new eudyalite-group minerals from the Lovozero massif, Kola Peninsula. Zapiski Vseross. Mineral. Obshch.: 132(5): 22-33.

Lapis (2004): 29(3): 40.

Internet Links for Raslakite

Search Engines:
  • Look for Raslakite on Google
  • Look for Raslakite images on Google
  • External Links:
  • Look for Raslakite on Webmineral
  • Look for Raslakite on Athena Mineralogy
  • Look for Raslakite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Mineral Dealers:
  • Fine minerals from bisbeeborn.com
  • Buy rare minerals from Excalibur Minerals
  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
  • SpiriferMinerals.com - high quality low prices
  • Fine and rare minerals from mintreasure.com
  • Buy RARE Minerals from Rocks of Africa
  • Buy from David K Joyce minerals
  • Fabre Minerals - search for Raslakite specimens
  • Buy from Dave Bunk Minerals
  • Buy from McDougall Minerals
  • High-end worldwide specimens & outstanding customer service
  • The Arkenstone - Fine Minerals
  • Jobs:
  • Mining & Geology Jobs
  • Localities for Raslakite

    The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Russia
     
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
          • Lovozero Massif
    N. V. Chukanov et al.: ZVMO 132(5):22-33 (2003)
    Mineral and/or Locality  
    Search Google  
    Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
    Current server date and time: March 29, 2014 15:28:16
    Mineral and Locality Search
    Mineral:
    and/or Locality:
    Options
    Fade toolbar when not in focusFix toolbar to bottom of page
    Hide Social Media Links
    Slideshow frame delay seconds